Zhu, Xiaolong4; Yan, Wei3; Mortensen, N. Asger3; Xiao, Sanshui3
1 Department of Photonics Engineering, Technical University of Denmark2 Structured Electromagnetic Materials, Department of Photonics Engineering, Technical University of Denmark3 Center for Nanostructured Graphene, Center, Technical University of Denmark4 Department of Micro- and Nanotechnology, Technical University of Denmark
We investigate the performance of bends and splitters in graphene nanoribbon waveguides. Although the graphene waveguides are lossy themselves, we show that bends and splitters do not induce any additional loss provided that the nanoribbon width is sub-wavelength. We use transmission line theory to qualitatively interpret the behavior observed in our simulation. Our results pave a promising way to realize ultra-compact devices operating in the terahertz region.
Optics Express, 2013, Vol 21, Issue 3, p. 3486-3491